diff --git a/backend/app/api/v1/endpoints/agent_tasks.py b/backend/app/api/v1/endpoints/agent_tasks.py
index 5892aef..9f48b99 100644
--- a/backend/app/api/v1/endpoints/agent_tasks.py
+++ b/backend/app/api/v1/endpoints/agent_tasks.py
@@ -90,7 +90,7 @@ class AgentTaskResponse(BaseModel):
     # 时间
     created_at: datetime
     started_at: Optional[datetime] = None
-    finished_at: Optional[datetime] = None
+    completed_at: Optional[datetime] = None
     
     # 配置
     config: Optional[dict] = None
@@ -193,7 +193,7 @@ async def _execute_agent_task(task_id: str, project_root: str):
             if task:
                 task.status = AgentTaskStatus.FAILED
                 task.error_message = str(e)
-                task.finished_at = datetime.now(timezone.utc)
+                task.completed_at = datetime.now(timezone.utc)
                 await db.commit()
         
         finally:
@@ -344,7 +344,7 @@ async def cancel_agent_task(
     
     # 更新状态
     task.status = AgentTaskStatus.CANCELLED
-    task.finished_at = datetime.now(timezone.utc)
+    task.completed_at = datetime.now(timezone.utc)
     await db.commit()
     
     return {"message": "任务已取消", "task_id": task_id}
@@ -554,8 +554,8 @@ async def get_task_summary(
     
     # 计算持续时间
     duration = None
-    if task.started_at and task.finished_at:
-        duration = int((task.finished_at - task.started_at).total_seconds())
+    if task.started_at and task.completed_at:
+        duration = int((task.completed_at - task.started_at).total_seconds())
     
     # 获取已完成的阶段
     phases_result = await db.execute(
diff --git a/backend/app/models/agent_task.py b/backend/app/models/agent_task.py
index 6a912e9..435e2a1 100644
--- a/backend/app/models/agent_task.py
+++ b/backend/app/models/agent_task.py
@@ -23,6 +23,7 @@ class AgentTaskStatus:
     """Agent 任务状态"""
     PENDING = "pending"           # 等待执行
     INITIALIZING = "initializing" # 初始化中
+    RUNNING = "running"           # 运行中
     PLANNING = "planning"         # 规划阶段
     INDEXING = "indexing"         # 索引阶段
     ANALYZING = "analyzing"       # 分析阶段
diff --git a/backend/app/services/agent/graph/runner.py b/backend/app/services/agent/graph/runner.py
index cfe9d47..d303c8b 100644
--- a/backend/app/services/agent/graph/runner.py
+++ b/backend/app/services/agent/graph/runner.py
@@ -42,7 +42,7 @@ class LLMService:
     """LLM 服务封装"""
     
     def __init__(self, model: Optional[str] = None, api_key: Optional[str] = None):
-        self.model = model or settings.DEFAULT_LLM_MODEL
+        self.model = model or settings.LLM_MODEL or "gpt-4o-mini"
         self.api_key = api_key or settings.LLM_API_KEY
     
     async def chat_completion_raw(
@@ -281,10 +281,20 @@ class AgentRunner:
             project_info = await self._collect_project_info()
             
             # 3. 构建初始状态
+            # 从任务字段构建配置
+            task_config = {
+                "target_vulnerabilities": self.task.target_vulnerabilities or [],
+                "verification_level": self.task.verification_level or "sandbox",
+                "exclude_patterns": self.task.exclude_patterns or [],
+                "target_files": self.task.target_files or [],
+                "max_iterations": self.task.max_iterations or 50,
+                "timeout_seconds": self.task.timeout_seconds or 1800,
+            }
+            
             initial_state: AuditState = {
                 "project_root": self.project_root,
                 "project_info": project_info,
-                "config": self.task.config or {},
+                "config": task_config,
                 "task_id": self.task.id,
                 "tech_stack": {},
                 "entry_points": [],
@@ -295,7 +305,7 @@ class AgentRunner:
                 "false_positives": [],
                 "current_phase": "start",
                 "iteration": 0,
-                "max_iterations": (self.task.config or {}).get("max_iterations", 3),
+                "max_iterations": self.task.max_iterations or 50,
                 "should_continue_analysis": False,
                 "messages": [],
                 "events": [],
diff --git a/frontend/src/pages/AgentAudit.tsx b/frontend/src/pages/AgentAudit.tsx
index f1a17ec..031166e 100644
--- a/frontend/src/pages/AgentAudit.tsx
+++ b/frontend/src/pages/AgentAudit.tsx
@@ -495,10 +495,12 @@ function StatusBadge({ status }: { status: string }) {
   const statusConfig: Record<string, { text: string; className: string }> = {
     pending: { text: "PENDING", className: "bg-gray-800 text-gray-400 border-gray-600" },
     initializing: { text: "INIT", className: "bg-blue-900/50 text-blue-400 border-blue-600 animate-pulse" },
+    running: { text: "RUNNING", className: "bg-green-900/50 text-green-400 border-green-600 animate-pulse" },
     planning: { text: "PLANNING", className: "bg-purple-900/50 text-purple-400 border-purple-600 animate-pulse" },
     indexing: { text: "INDEXING", className: "bg-cyan-900/50 text-cyan-400 border-cyan-600 animate-pulse" },
     analyzing: { text: "ANALYZING", className: "bg-yellow-900/50 text-yellow-400 border-yellow-600 animate-pulse" },
     verifying: { text: "VERIFYING", className: "bg-orange-900/50 text-orange-400 border-orange-600 animate-pulse" },
+    reporting: { text: "REPORTING", className: "bg-indigo-900/50 text-indigo-400 border-indigo-600 animate-pulse" },
     completed: { text: "COMPLETED", className: "bg-green-900/50 text-green-400 border-green-600" },
     failed: { text: "FAILED", className: "bg-red-900/50 text-red-400 border-red-600" },
     cancelled: { text: "CANCELLED", className: "bg-yellow-900/50 text-yellow-400 border-yellow-600" },